Avoiding allergy-containing foods is the key to living with food allergies. The trouble is that there are many synomyms for commenly used ingredients. For example, casien is a protein found in milk. It may also be referred to as casinate or whey protien. How do you avoid foods that have these hidden allergens? The Food Allergen Labeling and Consumer Protection Act (FALCPA), which took effect on January 1, 2006, will make purchasing foods in the US much easier.
However, consumers should educate themselves to read food labels. Some of the best allergy-free diet guides are found at the website of the Lucile Packard Children's Hospital at Stanford.